I am having this two errors please help me

Well I don't know how this happened, few days ago I only download anydesk app on my laptop, but right now my laptop showing this error, at first it shows the looy file problem where every file showing .looy at the end of file and then when log in another account it shows this error "if you don't sign out now your data will be lose " i seriously don't do any reckless thing, so pls help me about this.

Your computer got hacked and files got encrypted by ransomeware.
Google .looy to find latest solution for it and how to deal with the situation.

Where you get the App?